Wire Connections - Daikin D2270C Owner's Manual & Installation Instructions

Installation Instructions

Wire Connections

If the terminal designations on your old thermostat do not match those
on the new thermostat, refer to the chart below or the wiring diagrams
that follow.
Wire from the
old thermostat
terminal marked
G or F
Y1, Y
W1, W
Rh, R, M, Vr, A
C
O/B
W2
Ck1
CKGND
Function
Cooling
Heating
Power
Common
Rev. Valve
2nd Stage Heat
Dry Contact Switch
Dry Contact Switch
* O/B is used if your system is a Heat Pump.
Fan
2
Install on the
new thermostat
connector marked
G
Y1
W1/O/B
R
C
W1/O/B*
W2
CK
R